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Head to head

Kimi K3.1 Pro vs Grok Voice 3.0

How Kimi K3.1 Pro and Grok Voice 3.0 stack up across benchmarks, pricing, speed, and the workloads that matter.

Kimi K3.1 Pro

Moonshot AI · Proprietary

Blended price$2.89per 1M tokens
Context1.05Mtokens
Speedn/atok/s
Benchmarks30results
VS

Grok Voice 3.0

xAI · Proprietary

Blended pricen/aper 1M tokens
Contextn/atokens
Speedn/atok/s
Benchmarks1results

On reasoning, Grok Voice 3.0 leads by about 25 points in our normalized benchmark average.

The table below breaks down every workload axis where both models have published results. Each score is a normalized 0 to 1 average across the benchmarks tagged with that category. A gap of a few points is noise; a gap of ten or more is a real difference in capability. Where one model has not reported a result, the cell shows n/a and the missing benchmark does not drag its average down.

Benchmark scores by workload

WorkloadKimi K3.1 ProGrok Voice 3.0Edge
Reasoning 74% 99% +24.6 pts
Coding 61% n/a n/a
Agents & tool use 56% n/a n/a
Math 61% n/a n/a
Vision & multimodal 74% n/a n/a
Writing 56% n/a n/a
Knowledge & factuality 45% n/a n/a

The headline benchmarks below are the most widely cited individual tests. GPQA Diamond measures graduate-level reasoning in physics, chemistry, and biology. SWE-Bench Verified tests whether a model can fix real GitHub issues. MMMU-Pro covers college-level multimodal understanding across six disciplines. AIME and FrontierMath push competitive and research math. BrowseComp measures web research ability.

Headline benchmarks

BenchmarkKimi K3.1 ProGrok Voice 3.0
GPQA 94% n/a
MMMU-Pro 84% n/a
BrowseComp 92% n/a

Benchmarks tell you what a model can do in a controlled setting. They do not tell you whether it will work on your specific task, with your specific data, at your specific scale. The recommendations below map each common workload to whichever of these two models scores higher on the relevant axis. Use them as a starting point, not a final answer.

Which should you choose?

Hard reasoning

Multi-step analysis, research, and problems that need sustained thought.

Grok Voice 3.0

Coding & software

Writing, reviewing, and debugging code across a real codebase.

Kimi K3.1 Pro

Agents & tool use

Long-running agents that call tools, browse, and act on their own.

Kimi K3.1 Pro

Math & science

Formal math, competitive problems, and quantitative science.

Kimi K3.1 Pro

Vision & documents

Reading images, screenshots, charts, and dense documents.

Kimi K3.1 Pro

Writing & drafting

Copy, emails, and long-form drafting where tone matters.

Kimi K3.1 Pro

Scores are normalized from public benchmarks published by llm-stats.com and averaged per workload. Pricing is the blended input/output cost per million tokens at an 8:1 mix. Refreshes daily. How this works.